peters



ZSheets-Sheet 1.

N. WILL. Steam Generator.

Patented Oct. 12, 1880.

(No Model;) 2 Sheets-Sheet 2.

N. WILL.

Steam Generator.

No. 233,310. Patented Oct. 12,1880.

IIIIIIIII LT I l I I I I I I l I I I I I I I I I l I l I I I I I V I I l/N l l l I II I 1 l I I @I I I@I I K\ I I I IQ I III I I I/I l I I II I I I I I I IIII I I II III|I,IILII|IIIII"III :51 I I I I [Ell I WITNESSES- I/\/ VENTUF? NJ'ETERs, FHOYO-LJTHOGRAPHEE WASHINGTON. n C.

UNTTED STATES PATENT 01mins.

NIOOLAUS WILL, on BROOKLYN, E. 1)., NEW YORK.

STEAM-GENERATOR.

SPECIFICATION formingpart of Letters Patent No. 233,310, dated October 12, 1880.

Application filed March 15, 1880. (No model.)

To all whom it may concern:

Be it known that I, NIcoLAUs WILL, of Brooklyn. E. D., in the county of Kings and State of New York, have invented certain Improvements in Steam-Generators, of which the following is a specification.

The object of this invention is to present the most effective area of heating-surface to the action of the flame in the fire-box, and of the hot products of combustion as they pass from the fire-box to the uptake.

To this end the invention comprises certain novel combinations of water cylinders or receptacles with a flue-boiler and the water-legs thereof, whereby the desired object is accomplished.

Figure 1 is a vertical longitudinal section of an apparatus embracing my said invention. Fig. 2 is a front elevation thereof with the front plates or doors removed. Fig. 3 is a rear elevation thereof with the rear portion of the brick-work removed. Fig. 4 is a horizontal sectional view of a portion of the apparatus around the doorway, and Fig. 5 is a side elevation of said apparatus.

A is a flue-boiler, of which a are the longitudinal tubes but in place of a tubular boiler, commonly so termed,a flue-boiler may be used.

BB are the water-legs of the boiler, extended down therefrom upon the opposite sides of the forward portion of the fire-box O. Extending from one of these water-legs to the other, and communicating at each end therewith, are shells or chambers A B O, the uppermost, A, of which communicates with the water-space of the boiler A by a pipe, at.

Extending from the upper part of each of the water-legs B is a pipe, D, which connects with pipe E, the inner end of which communicates with the interior of the boilerAabove the water-level thereof-in other words, with the steam-space of said boiler. From their position the shells A B 0, together with the water-legs B B, are exposed to heat radiated from the front part of the furnace'or fire-box G, and the water therein is proportionately heated preliminary to its passage to the boiler, a due circulation of the water through the water-legs and the chambers A B 0 being provided for by the connections a D E, hereinbefore explained, the said circulation being sufficient to prevent the burning of the plates of which the walls of said parts are composed.

Immediately behind the fire-box G is a vessel or chamber, D, which communicates with the lower part or water-space of the boiler by a pipe or passage, 1), and with the steam-drum F of said boiler by means of another pipe, 0. It will thus be seen that the chamber D is exposed to the heat radiated rearwardly from the fire-box O, and forms part of the boiler, the circulation of the water within or through the chamber D being provided for by the pipes or passages 11 c. It will also be observed that the vessel or chamber D forms the bridge of the furnace and operates as such to the same extentas if made of brick-work orlike material.

Placed behind the chamber D, underneath the rearmost portion of the boiler, and supported upon brick-work d, are two cylinders, E E, connected bya pipe, 6, and with the chamber D by a pipe, f. The two cylindersE, moreover, are connected with the steam-drum F by pipes g It, so thatthe water can circulate through the said cylinders E, the latter forming part of the boiler, and the water within them being heated by the hot gaseous products of combustion after the latter have passed the chamber D. One or both ends of these cylinders E may be passed through the brick-work which surrounds the boiler in the same way that brickwork is usually applied to flue or tubular boilers, as represented in Fig. 5, these outwardlyprojected ends being furnished with suitable man-holes to permit them to be cleaned.

It is preferred that one or both ends of the chamber D have an extension through the wall of the brick-work, fitted with a similar manhole for a like purpose, the chamber D and cylinders E acting to a certain extent as mudtraps, and therefore requiring to be occasionally cleaned.

At the rearmost end of the boiler is a vertical chamber, G, the form of which in vertical longitudinal section is represented in Fig. 1, and which is connected by a pipe, m, with the lower part or water-space of the boiler A, and at its upper part by a pipe, 12, with the supplemental steam-drum I, placed upon the top of the boiler, and connecting therewith by a suitable pipe or passage, 1'. This chamber G is subjected to the action of the gaseous products of combustion from the furnace as they pass to the uptake at J, and all the remaining heat capable of utilization is therefore applied to heat the water in the chamber G, which, from its connections with the boiler A, hereinbefore explained, virtually forms part of said boiler, and operates to utilize the heat remaining after the effect of the flame in the fire-box, and the gaseous products of combustion escaping therefrom have acted upon the other and herein previously described portions of the apparatus. At the lower end of this chamber G should be applied a blowofi' cock, 8, and also a man-hole, u, accessible through a suitable opening at \V in the adjoining brick-work.

1 do not claim, broadly, the connection of the water-leg as part of the circulatory system of a steam-generator with the body or cylinder of such generator, as the same is shown and described in the several Letters Patent of the United States No. 6,768, No. 189,219, and No. 134,243, the same diifering in construction and modus operandi from my said invention.

What I claim as my invention is-- 1. The combination, with the boiler A, of the water-legs B, horizontal chambers A B 0, connecting at each end with said water-legs, and the pipesz'a D E, connecting the water legs and chambers with the water-space and steam-space, respectively, of the boiler A, the water-legs and shells aforesaid beingconstructed and arranged to heat the fccdwvater on its way to the boiler, all constructed and arranged substantially as and for the purpose herein set forth.

2. The combination of the transverse chamber D and pipes b c with the boiler A, the said chamber D being placed behind the fire-box O to serve the purpose of a bridge, and the pipes b a connecting said chamber D with the waterspace and steam space, respectively, of the aforesaid boiler A, one or more cylinders, E, pipe f, and a pipe connecting the cylinder E with the steam-space of the boiler, all arranged for circulation of the water substantially as and for the purpose herein set forth.

3. The transverse cylinders E E, connected with each other by the pipe 0', and with the steam-space ot' the boiler A by the pipe h, in combination with said boiler A, the chamber D, and the pipes b c, all substantially as and for the purpose herein set forth.

4. An organized apparatus comprising the boiler A, water-legs B B, connected by horizontal chambers A B O, the pipes a D E, the chamber D, serving the purpose of a bridge, the pipes b c, the transverse shells or cylinders E, pipes e f g h, the vertical chamber G, and pipes m and n, all arranged and combined for joint use and operation substantially as and for the purpose herein set forth.

5. The combination, in a steam-generator, of the water-legs B, chambers D G, and intervening cylinders E E, the various parts being connected, respectively, with the steam and water spaces of the boiler A, all operating together for the circulation of the water and the release of the steam generated therein, substantially as and for the purpose herein set forth.

NIOOLAUS WILL.

Witnesses:

H. F. PARKER, JAMES A. WHITNEY. 

